Lihokelo tsa lipeipi tsa ho phunya oli ke karolo ea bohlokoa ea phaephe ea ho phunya, e nang le phini le lebokose la khokahanyo pheletsong efe kapa efe ea 'mele oa phaephe ea ho phunya. Ho matlafatsa matla a khokahanyo, botenya ba lerako la phala hangata bo eketseha sebakeng sa khokahano. Ho ipapisitsoe le tsela eo botenya ba lebota bo ntseng bo eketseha ka eona, likhokahano li ka aroloa ka mefuta e meraro: pherekano ea ka hare (IU), pherekano ea kantle (EU), le pherekano ea kahare-kantle (IEU).
Ho itšetlehile ka mofuta oa khoele, likhokahano tsa liphaephe tsa ho cheka li arotsoe ka mefuta e mene e latelang e meholo: Internal Flush (IF), Full Hole (FH), Regular (REG), le Numbered Connection (NC).
1. Khokahano ea ka hare ea Flush (IF).
IF likhokahano li sebelisoa haholo-holo bakeng sa lipeipi tsa ho cheka tsa EU le IEU. Ka mofuta ona, bophara bo ka hare ba karolo e teteaneng ea phala e lekana le bophara bo ka hare ba ho hokahanya, e leng hape e lekanang le bophara bo ka hare ba 'mele oa pipe. Ka lebaka la matla a batlang a le tlase, likhokahano tsa IF li na le lits'ebetso tse tloaelehileng tse fokolang. Litekanyo tse tloaelehileng li kenyelletsa khoele ea lebokose le bophara ba 211 (NC26 2 3/8 ″), le khoele ea phini e thellang ho tloha pheletsong e nyane ho isa pheletsong e kholoanyane. Monyetla oa khokahanyo ea IF ke khanyetso ea eona e tlase ea phallo bakeng sa maro a ho cheka, empa ka lebaka la bophara ba eona bo boholo bo ka ntle, e atisa ho khathala habonolo ha e sebelisoa.
2. Khokahano ea Hole e Tletseng (FH).
Mahokelo a FH a sebelisoa haholo-holo bakeng sa liphaephe tsa ho cheka tsa IU le IEU. Ka mofuta ona, bophara bo ka hare ba karolo e teteaneng e lekana le bophara ba ka hare ba ho hokahanya empa e nyenyane ho feta bophara bo ka hare ba 'mele oa phala. Joalo ka khokahanyo ea IF, khoele ea phini ea khokahanyo ea FH e thella ho tloha ho e nyane ho isa pheletsong e kholo. Khoele ea lebokose e na le bophara ba ka hare ba 221 (2 7/8 ″). Tšobotsi e ka sehloohong ea khokahanyo ea FH ke phapang ea li-diameter tse ka hare, e leng se etsang hore ho be le khanyetso e phahameng ea phallo bakeng sa metsi a cheka. Leha ho le joalo, bophara ba eona bo ka ntle bo nyane bo etsa hore e se ke ea roala habonolo ha e bapisoa le likhokahano tsa REG.
3. Khokahano ea kamehla (REG).
Mahokelo a REG a sebelisoa haholo-holo bakeng sa liphaephe tsa ho cheka tsa IU. Ka mofuta ona, bophara bo ka hare ba karolo e teteaneng e nyane ho feta bophara bo ka hare ba ho hokahanya, e leng eona e nyenyane ho feta bophara bo ka hare ba 'mele oa pipe. Bokahare ba khoele ea lebokose ke 231 (2 3/8 ″). Har'a mefuta e tloaelehileng ea khokahanyo, likhokahano tsa REG li na le khanyetso e phahameng ka ho fetisisa ea phallo bakeng sa maro a ho cheka empa bophara bo bonyenyane ka ho fetesisa ba kantle. Sena se fana ka matla a maholoanyane, se etsa hore e tšoanelehe hantle bakeng sa lipeipi tsa ho phunya, likotoana tsa ho phunya le lisebelisoa tsa ho tšoasa litlhapi.
4. Khokahano ea Nomoro (NC)
Likhokahano tsa NC ke letoto le lecha le nkang sebaka sa li-IF le likhokahano tse ling tsa FH butle-butle ho tsoa ho litekanyetso tsa API. Likhokahano tsa NC li boetse li bitsoa letoto la likhoele tsa National Standard coarse-thread United States, tse nang le likhoele tsa mofuta oa V. Likhokahano tse ling tsa NC li ka fapanyetsana le likhokahano tsa khale tsa API, ho kenyeletsoa NC50-2 3/8″ IF, NC38-3 1/2″ IF, NC40-4″ FH, NC46-4″ IF, le NC50-4 1/2″ HAEBA. Karolo ea bohlokoa ea likhokahano tsa NC ke hore li boloka bophara ba sekontiri, taper, khoele ea khoele, le bolelele ba likhoele tsa likhokahano tsa khale tsa API, e leng ho li etsang hore li tsamaisane haholo.
E le karolo ea bohlokoa ea liphaephe tsa ho cheka, likhokahano tsa liphaephe tsa ho cheka li fapana haholo ho latela matla, ho hanyetsa ho roala, le ho thibela metsi ho phalla, ho itšetlehile ka mofuta oa khoele le mokhoa oa ho tiisa lebota. Likhokahano tsa IF, FH, REG, le NC e 'ngoe le e' ngoe e na le litšobotsi tse ikhethang 'me e loketse maemo a fapaneng a ts'ebetso. Ka tsoelo-pele ea theknoloji, likhokahano tsa NC butle-butle li nkela maemo a khale sebaka ka lebaka la ts'ebetso ea tsona e holimo, 'me e fetoha khetho e ka sehloohong ts'ebetsong ea sejoale-joale ea ho cheka oli.
Nako ea poso: Aug-22-2024
